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On a tray there are 11 sugar cookies,14 chocolate chip cookies,16 oatmeal raisin cookies,and 12 peanut butter cookies.if shaina picks one cookie at random,what is the probability that it is not a sugar cookie

On a tray there are 11 sugar cookies,14 chocolate chip cookies,16 oatmeal raisin cookies-example-1
User Doetoe
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The answer would be A. because in order to find probability, you need to add up all the numbers. So, in this case you would add up 11 +14+ 16+ 12 which would equal 53. So, now 53 is the denominator. Now, to find the numerator, all you have to do is 53 - 12 which is the number of sugar cookies. The answer therefore is 42 over 53! Hopefully that helped!
User Coby
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